Обсуждение: anonymous block in Postgres - Hello World
#!/bin/sh
psql --quiet -t << EOF
declare
x varchar(80);
begin
x:='Hello World';
raise notice x;
end;
\q
EOF
======
Hi,
This code is my first “like Oracle anonymous blocl”. It does not go through.
Can anyone help?
Thanks
Danny
"Abraham, Danny" <danny_abraham@bmc.com> writes:
> This code is my first "like Oracle anonymous blocl". It does not go =
> through.
There are no anonymous blocks in Postgres --- you must create a
function.
regards, tom lane
Coming from Oracle world, I also was missing the ability to execute anonymous blocks.
So I wrote this function:
CREATE OR REPLACE FUNCTION exec_plpgsql_block(exec_string text)
RETURNS BOOLEAN
AS $THIS$
DECLARE lRet BOOLEAN;
BEGIN
EXECUTE 'CREATE OR REPLACE FUNCTION any_block()
RETURNS VOID
AS $$ ' || exec_string || ' $$LANGUAGE PLPGSQL;' ;
PERFORM any_block();
RETURN TRUE;
END;
$THIS$LANGUAGE PLPGSQL;
to which I pass my "anonymous" block as a parameter.
As you can see, this function creates/replaces "on the fly" function "any_block()" and executes it.
Pretty simple solution.
Igor Neyman
-----Original Message-----
From: pgsql-admin-owner@postgresql.org [mailto:pgsql-admin-owner@postgresql.org] On Behalf Of Tom Lane
Sent: Thursday, May 24, 2007 11:12 AM
To: Abraham, Danny
Cc: pgsql-admin@postgresql.org; Devrim GÜNDÜZ
Subject: Re: [ADMIN] anonymous block in Postgres - Hello World
"Abraham, Danny" <danny_abraham@bmc.com> writes:
> This code is my first "like Oracle anonymous blocl". It does not go =
> through.
There are no anonymous blocks in Postgres --- you must create a function.
regards, tom lane
---------------------------(end of broadcast)---------------------------
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"Igor Neyman" <ineyman@perceptron.com> writes:
> CREATE OR REPLACE FUNCTION exec_plpgsql_block(exec_string text)
> RETURNS BOOLEAN
> AS $THIS$
> DECLARE lRet BOOLEAN;
> BEGIN
> EXECUTE 'CREATE OR REPLACE FUNCTION any_block()
> RETURNS VOID
> AS $$ ' || exec_string || ' $$LANGUAGE PLPGSQL;' ;
> PERFORM any_block();
> RETURN TRUE;
> END;
> $THIS$LANGUAGE PLPGSQL;
That hasn't failed for you yet? It will the first time you use $$
in the argument.
Use quote_literal() please ...
regards, tom lane